Jeff,
I don't think you're going to find a simple answer for this one. There are just too many variables - temperature, maximum flaw size, copper thickness, direction of force, etc.
I believe your best bet is to mechanically restrain the component such that it doesn't transfer force to the pad. The force should be absorbed by fasteners that transfer the shock to the board and/or board supports.
This sort of question is why prototypes are built and tested on shake tables.
Regards - Harry
At 07:59 AM 4/27/05, you wrote:
snipDoes anybody know how much force I can apply to a pad before it will brake loose?
I plan to mount a surface mount component on a polyamide PCB which needs to handle a 10G shock.
Jeff Stout
P.S. I'm grateful for any information provided.
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